September 01, 2014, 04:42:26 AM

Author Topic: Looking for a good bang for buck extender with a focus on image quality.  (Read 3811 times)

MSP

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I've owned both the Canon 1.4x II and 1.4x III extenders and there's virtually no difference in IQ. If you don't plan on buying a new generation super telephoto lens in the foreseeable future then find a used version II for around $200. At around half of the version III's price it's a much better bang for your buck and fairly easy to resell if you ever decide to upgrade.
5DIII | 7D | 30D | 16-35 2.8L II | 24-70 2.8L | 70-200 2.8L IS II | 35 1.4L | 50 1.8 | 180 3.5L Macro | 1.4x & 2x III | 580EX II

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AlanF

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I have the 1.4 and 2 TCs series III. I bought the Kenko DG 300 Pro 1.4 so I could focus at f/8.  Unfortunately, it locked up my 5DIII with some lenses and I had to remove the battery to restart.  So, I sold it.  If you can afford it, get the series III for long term compatibility with newer Canon lenses.  They are already essential for the series II telephoto lenses. 
5D III, 70D, Powershot SX50, 300/2.8 II, 1.4xTC III, 2xTC III, 70-200/4 IS, 24-105, 15-85, Sigma 10-20, Tamron 150-600.

yogi

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I have the canon 1.4xlll and it is a great tc. As others have mentioned, it can depend on your future plans for lens purchases. I also have the sigma extenders, but use them only on my sigma 50-500os. What can you say about the 50-500? It is ok, but often i use a good bit of sharpening in ps6, especially using the tc(1.4-the 2.0 is not that sharp & i rarely use it). Interesting that i just bought the kenko 1.4 for my 70-300L because some posters here on CR said that it is a fairly decent tc, but have not had time to try it out.

Mt Spokane Photography

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Tamron and Sigma also make a 1.4x... so does anyone have an opinion about them?

http://www.amazon.com/Sigma-Teleconverter-Canon-Mount-Lenses/dp/B000CD8BGU/ref=sr_1_5?s=electronics&ie=UTF8&qid=1367033823&sr=1-5&keywords=canon+1.4x+ef

http://www.amazon.com/Tamron-Teleconverter-Canon-Mount-Lenses/dp/B0007YZLJ4/ref=sr_1_3?s=electronics&ie=UTF8&qid=1367033823&sr=1-3&keywords=canon+1.4x+ef
The Tamron is the same as the Kenko, just rebadged, I think Sigma may be doing their own.
 
The issue with the Kenko is that it will lock up a 5D MK III with certain lenses unless you remember to first turn off AFMA.  That's a poor solution, since a lens +TC combination almost always needs AFMA.

jdramirez

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Tamron and Sigma also make a 1.4x... so does anyone have an opinion about them?

http://www.amazon.com/Sigma-Teleconverter-Canon-Mount-Lenses/dp/B000CD8BGU/ref=sr_1_5?s=electronics&ie=UTF8&qid=1367033823&sr=1-5&keywords=canon+1.4x+ef

http://www.amazon.com/Tamron-Teleconverter-Canon-Mount-Lenses/dp/B0007YZLJ4/ref=sr_1_3?s=electronics&ie=UTF8&qid=1367033823&sr=1-3&keywords=canon+1.4x+ef
The Tamron is the same as the Kenko, just rebadged, I think Sigma may be doing their own.
 
The issue with the Kenko is that it will lock up a 5D MK III with certain lenses unless you remember to first turn off AFMA.  That's a poor solution, since a lens +TC combination almost always needs AFMA.

Interesting.   I didn't realize Tam and Ken were the same.  Especially since their rating is quite different.  And while I don't quite have a 5d mkiii today... I will tomorrow or maybe next month.  So that eliminates that from consideration.  That's just silly that you would ever turn off AFMA, unless you were manually focusing... ugh.  Thanks for the heads up... I was leaning towards the kenko.
Upgrade  path.->means the former was sold for the latter.

XS->60D->5d Mkiii:18-55->24-105L:75-300->55-250->70-300->70-200 f4L USM->70-200 f/2.8L USM->70-200 f/2.8L IS Mkii:50 f/1.8->50 f/1.4->100 f/2.8L->85mm f/1.8 USM->135L -> 8mm ->100L

Mt Spokane Photography

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Interesting.   I didn't realize Tam and Ken were the same.  Especially since their rating is quite different.  And while I don't quite have a 5d mkiii today... I will tomorrow or maybe next month.  So that eliminates that from consideration.  That's just silly that you would ever turn off AFMA, unless you were manually focusing... ugh.  Thanks for the heads up... I was leaning towards the kenko.

There used to be a note on the site that they used the same optics, but it doesn't mean the chip or housing is the same.  You have to compare like series as well.   Since the price is the same within $20 or so, I'd just get a Kenko.  Resale value will be higher, since Tamron is often thought of as a low end brand.

jdramirez

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Interesting.   I didn't realize Tam and Ken were the same.  Especially since their rating is quite different.  And while I don't quite have a 5d mkiii today... I will tomorrow or maybe next month.  So that eliminates that from consideration.  That's just silly that you would ever turn off AFMA, unless you were manually focusing... ugh.  Thanks for the heads up... I was leaning towards the kenko.

There used to be a note on the site that they used the same optics, but it doesn't mean the chip or housing is the same.  You have to compare like series as well.   Since the price is the same within $20 or so, I'd just get a Kenko.  Resale value will be higher, since Tamron is often thought of as a low end brand.

The kenko is now off my radar screen... so, that's the end of that.  I appreciate the response though.  I know Tamron is a 3rd party lens manufacturer and their resale value isn't what it is for Canon, but I was of the opinion that their reputation was on par with Sigma.  I might need to rethink that.
Upgrade  path.->means the former was sold for the latter.

XS->60D->5d Mkiii:18-55->24-105L:75-300->55-250->70-300->70-200 f4L USM->70-200 f/2.8L USM->70-200 f/2.8L IS Mkii:50 f/1.8->50 f/1.4->100 f/2.8L->85mm f/1.8 USM->135L -> 8mm ->100L

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